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NUCLEAR REACTOR VIBRATION SURVEILLANCE SYSTEM AND ITS METHOD

  • US 20090282920A1
  • Filed: 03/23/2009
  • Published: 11/19/2009
  • Est. Priority Date: 03/25/2008
  • Status: Active Grant
First Claim
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1. A nuclear reactor vibration surveillance system comprising:

  • a first ultrasonic transducer for transmission which is arranged on the outer surface of a reactor pressure vessel and is configured to convert a transmission signal into an ultrasonic pulse signal and allow the ultrasonic pulse to be transmitted to a reactor internal component;

    an ultrasonic transmitter which is electrically connected to the first ultrasonic transducer and is configured to transmit the transmission signal;

    a second ultrasonic transducer for reception which is arranged on the outer surface of the reactor pressure vessel and is configured to receive a reflected ultrasonic pulse reflected by the reactor internal component and convert the received reflected ultrasonic pulse into a reception signal;

    an ultrasonic receiver which is electrically connected to the second ultrasonic transducer and is configured to receive the reception signal;

    a signal processor which is electrically connected to the ultrasonic transmitter and ultrasonic receiver and is configured to input a signal to the ultrasonic transmitter and receive a signal from the ultrasonic receiver so as to apply signal processing to the signal; and

    a display unit which is configured to display vibration information of the reactor internal component obtained as a result of the signal processing by the signal processor.

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